Mercedes-Benz ML320. Service manual - part 251

 

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Mercedes-Benz ML320. Service manual - part 251

 

 

Fig. 85: MCS Cassette Mode Block Diagram 

Playback of compact discs  

When the" Open " button is pressed the display opens automatically releasing the slot for the ompact cassettes 
CC ) and c ompact d iscs ( CD ). When the radio and navigation module (A2/56) is switched on the CC is 
pulled in automatically after it has been inserted beyond a pressure point. Then the playback of the CC starts 
with side 1 which is the side of the CC pointing upward. If a CC is defective or is wound too tightly, the 
message (" Tape Error, Tape may be to tight ") appears on the display. 

Fig. 86: Identifying CD Slot And CC Slot 

The following functions are available for playback of the CC : 

Auto reverse 

 

2001 Mercedes-Benz ML320 

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

  

me 

 

By pressing the multifunction key" Side " the side of the CC can be changed. This is indicated on the 
display by" Side 1 " or" Side 2 ". The side changes automatically when the end of the tape is reached. 

Fast forward/rewind 

Pressing the "joystick " to the left right causes the CC to be wound backward and forward at high speed. 
The procedure can be stopped by pressing the" joystick " again in any direction. When the end of the tape 
is reached the side is changed automatically and playback continues. 

Music search 

The music search feature can be started by pressing the " joystick " upward for forward or downward for 
rewind. During the search "MS FWD " or "MSREW " appears on the display. As soon as sufficiently 
large pause ( approx. 3 s ) is recognized, the search stops and playback starts automatically. The search 
can be stopped manually by pressing the" joystick " in any direction. 

Scan function 

The multifunction key" Scan " causes all titles on the CC to be played for approx. 8 s . . Pressing the 
multifunction key" Scan " again stops this procedure. 

Dolby B 

Actuating multifunction key" Dolby " activates this function. The Dolby system appears inverted on the 
display. Pressing again deactivates this function. 

Pause "II" 

The following events cause the function to change from "Play " to "Pause ": 

Pressing multifunction key "Pause " (display changes from "II " to "Play ").  

By an incoming or outgoing call  

Switching over to another audio mode.  

Pause recognition 

Pressing the multifunction key" Skip " activates or deactivates the pause recognition function. If a pause 
of more than 15 s . is recognized the drive changes automatically to fast forward. If this function is 
activated the display appears inverted. 

NAVIGATION MODE, FUNCTION - GF82.85-P-2012B 

MODEL 163, 168, 170, 208, 210 with CODE (353) Audio 30 APS

 

Volume/tone 
adjustments, function

 

GF82.60-P-2003GI

 

2001 Mercedes-Benz ML320 

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

  

me 

 

Audio 30 APS block diagram in navigation mode

Fig. 87: Audio 30 APS In Navigation Mode Block Diagram 

The location of the vehicle as well as the direction and distance to the destination (according to destination 
entered) is determined with the aid of the navigation system. Then the required measures to reach the 
destination are started (guidance) . 

The navigation system can be activated by pressing the "NAV" button on the radio and navigation unit 
(A2/56)
 . 

navigation processor with CD-ROM drive is integrated into the radio and navigation unit (A2/56) for 
reading in the navigation data (digital map, speech segments and software). 

 The navigation CD-ROM drive can also be used to play audio CDs. 

Entering destination  

The destination can be entered with menu guidance on the radio and navigation unit (A2/56) and processed by 
the navigation processor . The system only allows entry of destination addresses stored on the CD-ROM. 

The following possibilities are available for entering a destination: 

Call-up of destination stored in destination memory  

Free entry of destination with menu guidance based on name (when destination is stored on CD-ROM)  

Location finding  

 

2001 Mercedes-Benz ML320 

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

  

me 

 

The navigation processor continuously calculates the location of the vehicle with the aid of the following 
procedures: 

GPS location finding  

Basic location finding (dead reckoning)  

Map-supported location finding (map matching)  

The correct position is determined by continuously comparing the locating result of these three procedures. 

Route calculation  

The route is calculated in the navigation processor according to the destination entered, or automatically, after 
deviating from the recommended route. The recommended route is stored in the navigation processor 

Guidance  

After the navigation processor has calculated the route, guidance is started. The driver receives continuous 
information with the aid of guidance symbols appearing on the display of the radio and navigation unit 
(A2/56)
 and voice announcements on the vehicle loudspeaker. 

 

Audio 30 APS block diagram

Model 163

GF82.61-P-0002-02D

 

 

Model 168

GF82.61-P-0002-02B

 

 

Model 170

GF82.61-P-0002-02A

 

 

Models 208, 210

GF82.61-P-0002-02C

 

Basic location finding (dead 
reckoning), function

 

GF82.61-P-3006D

 

Global positioning system (GPS) 
location finding, function

 

GF82.61-P-3007C

 

Map-assisted location finding, 
function

 

GF82.61-P-3008C

 

Route calculation, function

 

GF82.61-P-3011E

 

Destination guidance, function

 

GF82.61-P-3012D

 

Loading language, function

 

GF82.61-P-3003B

 

Volume and tone settings

 

GF82.60-P-2003A

 

Radio mode, function

 

GF82.60-P-2001B

 

CD player mode, function

 

GF82.60-P-2002B

 

Radio and navigation unit, 
location/purpose/ design/function

 

GF82.61-P-4109A

 

CTEL and GPS roof antenna, 
location/purpose/ design/function

Models 163, 
168,208.3,210

GF82.70-P-4111A

 

Global positioning system antenna, 
location/ purpose/design/function

Models 170, 208.4

GF82.61-P-4106A

 

Antenna splitter, 

Model 163

GF82.85-P-3107B

 

2001 Mercedes-Benz ML320 

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

  

me 

 

 

 

 

 

 

 

 

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